Accreting Pulsating Neutron Stars

As part of INTEGRAL's guaranteed time program, from 2003 Jan to 2006 Aug INTEGRAL scanned parts of the Galactic plane every fortnight (the INTEGRAL "Galactic Plane Survey", GPS). These WWW-pages contain up to date information of basic observational data from all pulsating accreting neutron stars from the GPS scans, which is made available within days of the consolidated INTEGRAL data becoming available at the INTEGRAL Science Data Centre. At the moment source fluxes on a INTEGRAL Science Window basis are shown for the JEM-X and IBIS instruments and selected energy bands for all Science Windows where a source has been detected. All data reduction was performed with INTEGRAL OSA 5.1. We plan to add pulse profiles and pulse period information in the next few months.

The pages also contain basic scientific information about the sources monitored, including literature references and links to data from the RXTE All Sky Monitor and the BATSE experiment on the Compton Gamma Ray observatory, where available.

The following table contains our current source sample, click on the source name to access the information. Click on the column title to sort the table.

Source Namel (deg)b (deg)Pspin (s)Porb (d)
GRO J1744-28  0.05  +0.3      0.467   11.76 
GX 1+4  1.94  +4.79   120.     
AX J1820.5-1434 16.47  +0.07   152.26   
XTE J1855-026 31.09  -2.14   361.       6.1  
XTE J1906+090 42.59  +0.89    89.17   
4U 1907+097 43.74  +0.48   440.4      8.38 
SAX J2103.5+4545 87.12  +0.68   358.61    12.68 
3A 0114+650125.71  +2.56  9828.      11.6  
4U 0115+634125.92  +1.03     3.61    24.3  
RX J0440.9+4431159.85  -1.27   202.5    
A0535+262181.5   -2.64   103.5    110.3  
SAX J0635.2+0533206.15  -1.04     0.0338 
Vela X-1263.06  +3.9    283.2      8.96 
4U 1036-56285.36  +1.43   862.     
Cen X-3292.09  +0.34     4.82     2.09 
1E1145.1-6141295.49  -0.01   297.29    14.365
H 1145-619295.61  -0.24   292.2    187.5  
GX 301-2300.1   -0.04   681.      41.5  
3A 1239-599301.8   +2.6    191.     
SAX J1324.4-6200306.79  +0.61   170.84    22.   
SAX J1452.8-5949317.64  -0.46   437.4    
H 1538-522327.42  +2.16   528.8      3.73 
AX J1700.1-4157344.    -0.6    714.5    
OAO 1657-415344.35  +0.31    37.7     10.4  
SAX J1808.4-3658355.38  -8.15     0.0025   0.837
3A 1822-371356.85 -11.29     0.593    0.23 

When using the data provided here, please include a reference to these web pages as follows: INTEGRAL GPS Team for accreting neutron stars (Wilms, Santangelo, Staubert et al., 2004-2007) and include the URL of these WWW pages. Please email Jörn Wilms (wilms at with questions concerning these pages.

The team responsible for the analysis of accreting pulsating neutron stars within the INTEGRAL GPS consists of the following people: Jürgen Barnstedt (IAA Tübingen), Masha Chernyakova (ISDC/University of Geneva), Thierry Courvoisier (ISDC/University of Geneva), Miroslaw Denis (CBK Warsaw) Guido DiCocco (INAF/CNR Bologna), Carlo Ferrigno (INAF Palermo), Sonja Fritz (IAA Tübingen), Peter Kretschmar (ESA-ESAC), Ingo Kreykenbohm (ISDC/IAA Tübingen), Nikolai von Krusenstiern (IAA Tübingen), Stefan Larsson (University of Stockholm), Jenny Maar (IAA Tübingen), Sandro Mereghetti (INAF Milano), Ada Paizis (ISDC/INAF Milano), Katja Pottschmidt (ISDC/UC San Diego), Andrea Santangelo (IAA Tübingen), Alberto Segreto (INAF Palermo), Lara Sidoli (INAF Milano), Rüdiger Staubert (IAA Tübingen), Nils-Jorgen Westergaard (DSRI Copenhagen), and Jörn Wilms (University of Erlangen-Nürnberg).

Further information and corrections for the pages were provided by the MAGNET collaboration, especially Isabel Caballero (IAA Tübingen) Dima Klochkov (IAA Tübingen), Vanessa McBride (University of Southampton), and Rick Rothschild (UCSD).